Month: November 2022

《Enhanced decomposition of caffeine by water plasma combined with mist generator: Effect of operational parameter and decomposition pathway》 was written by Kim, Soon-Ho; Tanaka, Manabu; Lee, Myeong-Hoon; Watanabe, Takayuki. Related Products of 6381-59-5This research focused onwater plasma mist generator caffeine decomposition pathway operational parameter; Caffeine; Decomposition pathway; Reactive species; Thermal plasma; Water plasma. The article conveys some information:

Water plasma coupled with mist generator was introduced to perform the decomposition of caffeine (CAF) wastewater. The mist-shaped water mol. was directly used for plasma-forming gas with no addnl. gas. The influence of arc current on the decomposition of CAF was elucidated in detail. With the increase of input power from 0.8 to 1.1 kW according to arc current, the removal efficiency of total organic carbon (TOC) and CAF increased, reaching 91.1 and 99.8% at 9.5 A, resp. H2, CO, CO2, and N2 were major effluent gaseous species, of which the H2 generation was more than 40% for all conditions. The concentration of nitrate in the effluent liquids was the highest at 9.5 A due to a higher oxidation environment. The H, O, and OH as reactive species formed via the dissociation of water mols. were demonstrated, and the plasma temperatures were at over 5000 K. The detailed decomposition pathway was deduced based on eleven intermediate products identified in this process. Electron impact and hydroxyl radical were found to take leading roles in the decomposition of CAF. In the experiment, the researchers used Potassium sodium (2R,3R)-2,3-dihydroxysuccinate tetrahydrate(cas: 6381-59-5Related Products of 6381-59-5)

Potassium sodium (2R,3R)-2,3-dihydroxysuccinate tetrahydrate(cas: 6381-59-5) is a ferroelectric crystal with a high piezoelectric effect and electromechanical coupling coefficient. Related Products of 6381-59-5 It is utilized to break up emulsion in organic synthesis as well as a common precipitant in protein crystallography.

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《Methanol-promoted borylation of arylamines: a simple and green synthetic method to arylboronic acids and arylboronates》 was published in Synlett in 2014. These research results belong to Zhao, Cong-Jun; Xue, Dong; Jia, Zhi-Hui; Wang, Chao; Xiao, Jianliang. COA of Formula: C14H21BO2 The article mentions the following:

A Sandmeyer borylation of arylamines via a SN2Ar pathway promoted by methanol with sodium nitrite and hydrochloric acid as diazotization agent has been developed, which provide a simple and green synthetic method to arylboronic acids and arylboronates. In the part of experimental materials, we found many familiar compounds, such as 2-(3,4-Dimethylphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane(cas: 401797-00-0COA of Formula: C14H21BO2)

2-(3,4-Dimethylphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane(cas: 401797-00-0) belongs to hydroxy-containing compounds. Hydroxy-containing compounds engage in intermolecular hydrogen bonding increasing the electrostatic attraction between molecules and thus to higher boiling and melting points than found for compounds that lack this functional group.COA of Formula: C14H21BO2 Organic compounds, which are often poorly soluble in water, become water-soluble when they contain two or more hydroxy groups, as illustrated by sugars and amino acid.

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《New approach for the one-pot synthesis of 1,3,5-triazine derivatives: Application of Cu(I) supported on a weakly acidic cation-exchanger resin in a comparative study》 was written by Havrankova, Eva; Csollei, Jozef; Pazdera, Pavel. Related Products of 156-87-6This research focused ontriazine preparation one pot synthesis copper acidic resin catalyst; 1,3,5-triazine; Ullmann reaction; one-pot synthesis; supported Cu(I) catalyst. The article conveys some information:

An efficient and simple methodol. for Ullmann Cu(I)-catalyzed synthesis of di- and trisubstituted 1,3,5-triazine derivatives from dichlorotriazinyl benzenesulfonamide and nucleophiles is reported. Cations Cu(I)-supported on macroporous and weakly acidic, low-cost industrial resin of polyacrylate type were used as a catalyst. The reaction times and yields were compared with traditional synthetic methods for synthesis of the substituted 1,3,5-triazine derivatives via nucleophilic substitution of chlorine atoms in dichlorotriazinyl benzenesulfonamide. It was found that Ullmann-type reactions provide significantly shortened reaction times and, in some cases, also higher yields. Finally, trisubstituted s-triazine derivatives were effectively prepared via Ullmann-type reaction in a one-pot synthetic design. Six new s-triazine derivatives with potential biol. activity were prepared and characterized. The results came from multiple reactions, including the reaction of 3-Aminopropan-1-ol(cas: 156-87-6Related Products of 156-87-6)

3-Aminopropan-1-ol(cas: 156-87-6) belongs to anime. Nitrous acid converts secondary amines (aliphatic or aromatic) to N-nitroso compounds (nitrosamines): R2NH + HNO2 → R2N―NO. Some nitrosamines are potent cancer-inducing substances, and their possible formation is a serious consideration when nitrites, which are salts of nitrous acid, are present in foods or pharmaceutical preparations. Tertiary amines give rise to nitrosamines more slowly; an alkyl group is eliminated as an aldehyde or ketone, along with nitrous oxide, N2O.Related Products of 156-87-6

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《Nickel-catalyzed allylic defluorinative alkylation of trifluoromethyl alkenes with reductive decarboxylation of redox-active esters》 was published in Chemical Science in 2019. These research results belong to Lu, Xi; Wang, Xiao-Xu; Gong, Tian-Jun; Pi, Jing-Jing; He, Shi-Jiang; Fu, Yao. Reference of ((3aS,5aR,8aR,8bS)-2,2,7,7-Tetramethyltetrahydro-3aH-bis([1,3]dioxolo)[4,5-b:4′,5′-d]pyran-3a-yl)methanol The article mentions the following:

An efficient method was developed for the synthesis of functionalized gem-difluoroalkenes I [R = c-hexyl, 4-BrC6H4(CH2)2, 4-CNC6H4O(CH2)2C(Me)2, etc.; Ar = 3,4-(OMe)2C6H3, 4-PhC6H4, 2-naphthyl, etc.] via nickel-catalyzed defluorinative reductive cross-coupling of trifluoromethyl alkenes with redox-active esters. The present reaction involved C(sp3)-F bond cleavage and C(sp3)-C(sp3) bond formation under very mild reaction conditions, while tolerating many sensitive functional groups and requiring minimal substrate protection. Therefore, this method provided an efficient and convenient approach for late-stage modification of biol. interesting mols.((3aS,5aR,8aR,8bS)-2,2,7,7-Tetramethyltetrahydro-3aH-bis([1,3]dioxolo)[4,5-b:4′,5′-d]pyran-3a-yl)methanol(cas: 20880-92-6Reference of ((3aS,5aR,8aR,8bS)-2,2,7,7-Tetramethyltetrahydro-3aH-bis([1,3]dioxolo)[4,5-b:4′,5′-d]pyran-3a-yl)methanol) was used in this study.

((3aS,5aR,8aR,8bS)-2,2,7,7-Tetramethyltetrahydro-3aH-bis([1,3]dioxolo)[4,5-b:4′,5′-d]pyran-3a-yl)methanol(cas: 20880-92-6) is a useful reactant for examining the effectiveness of sulfamate and sulfamide groups for the inhibition of carbonic anhydrase-​II (CA-​II)​.Reference of ((3aS,5aR,8aR,8bS)-2,2,7,7-Tetramethyltetrahydro-3aH-bis([1,3]dioxolo)[4,5-b:4′,5′-d]pyran-3a-yl)methanol And it is used as chiral auxiliaries in Michael and Aldol addition reactions.

Referemce:
Alcohol – Wikipedia,
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《Prebiotic Agrocybe cylindracea crude polysaccharides combined with Lactobacillus rhamnosus GG postpone aging-related oxidative stress in mice》 was published in Food & Function in 2022. These research results belong to Wu, Linxiu; Liu, Xiaoyan; Hu, Rongkang; Chen, Yixuan; Xiao, Meifang; Liu, Bin; Zeng, Feng. Category: alcohols-buliding-blocks The article mentions the following:

This study aimed to investigate the potential anti-aging mechanisms of Agrocybe cylindracea crude polysaccharides (APS), when used synergistically with Lactobacillus rhamnosus GG (APS + LGG) in a D-galactose-induced aging mouse model. In the Morris water maze test, APS + LGG showed a significantly higher memory and learning capacity compared to untreated, APS only treated and LGG treated mice. This was thought to be mediated by increased levels of brain-derived neurotrophic factor, which decreased escape latency. In addition to this, in the aging mouse model, APS + LGG co-treatment markedly alleviated liver oxidation and metabolism by enhancing the antioxidant activity of enzymes; this decreased the lipid metabolism and peroxidation levels. Furthermore, high throughput sequencing anal. revealed that an APS + LGG supplemented feed increased the relative abundance of pos. bacteria in the gut microbiota such as Alloprevotella and Parvibacter. Importantly, Alloprevotella and Parvibacter showed a neg. relationship with low d. lipoprotein-cholesterol in the Spearman correlation anal. These results illustrate that APS, in combination with LGG, postponed aging related oxidative stress when used as a prebiotic. The proposed mechanism for this is the reduction in liver oxidation and lipid metabolism, as well as the regulation of gut microbiota. The experimental process involved the reaction of rel-(3R,4S,5S,6R)-6-(Hydroxymethyl)tetrahydro-2H-pyran-2,3,4,5-tetraol(cas: 54-17-1Category: alcohols-buliding-blocks)

rel-(3R,4S,5S,6R)-6-(Hydroxymethyl)tetrahydro-2H-pyran-2,3,4,5-tetraol(cas: 54-17-1) is the monohydrate form of the alpha isoform of D-glucopyranose, a synthetic simple monosaccharide that is used as an energy source.Category: alcohols-buliding-blocks

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Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

《Preparation of triazine containing porous organic polymer for high performance supercapacitor applications》 was written by Xu, Lirong; Liu, Ruiying; Wang, Fang; Yan, Shina; Shi, Xinxin; Yang, Jiaqin. Application of 34374-88-4This research focused ontriazine porous organic polymer supercapacitor. The article conveys some information:

By condensing M and TFP under solvothermal conditions, a new porous organic polymer POPM-TFP was obtained. The electrode modified with triazine containing POPM-TFP exhibits well-defined rapid redox processes and showed a high specific capacitance of 130.5 F g-1 at 2 A g-1, suggesting well electrochem. performance. After reading the article, we found that the author used 2,4,6-Trihydroxybenzene-1,3,5-tricarbaldehyde(cas: 34374-88-4Application of 34374-88-4)

2,4,6-Trihydroxybenzene-1,3,5-tricarbaldehyde(cas: 34374-88-4) is a member of phloroglucinol derivatives. Phloroglucinol derivatives are a major class of secondary metabolites. Phloroglucinol compounds can be classified into monomeric, dimeric, trimeric and higher phloroglucinols, and phlorotannins.Application of 34374-88-4

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Alcohol – Wikipedia,
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《Pyrolytic characteristics of fine materials from municipal solid waste using TG-FTIR, Py-GC/MS, and deep learning approach: Kinetics, thermodynamics, and gaseous products distribution》 was written by Lin, Kunsen; Tian, Lu; Zhao, Youcai; Zhao, Chunlong; Zhang, Meilan; Zhou, Tao. Safety of (R)-Oxiran-2-ylmethanol And the article was included in Chemosphere on April 30 ,2022. The article conveys some information:

Fine materials (FM) from municipal solid waste (MSW) classification require disposal, and pyrolysis is a feasible method for the treatments. Hence, the behavior, kinetics, and products of FM pyrolysis were investigated in this study. A deep learning algorithm was firstly employed to predict and verify the TG data during the process of FM pyrolysis. The results showed that FM pyrolysis could be divided into drying (<138 °C), de-volatilization (138-570 °C), and decomposition stage (≥570 °C above). The de-volatilization can further be divided into stage 2 and stage 3, with values of activation energy estimated by Flynn-Wall-Ozawa and Kissinger-Akahira-Sunose methods as 123.35 and 172.95 kJ/mol, resp. The gas products like H2O, CO2, CH4, and CO, as well as functional groups like phenols and carbonyl (C=O), were all detected during the process of FM pyrolysis by thermogravimetric-fourier transform IR spectrometry at a heating rate of 10 °C/min. The main species detected by pyrolysis-gas chromatog.-mass spectrometry analyzer included acid (41.98%) and aliphatic hydrocarbon (22.44%). Finally, the 1D-CNN-LSTM algorithm demonstrated an outstanding generalization capability to predict the relationship between FM composition and temperature, with R2 reaching 93.91%. In sum, this study provided a reference for the treatment of FM from MSW classification as well as the feasibility and practicability of deep learning applied in pyrolysis. The experimental part of the paper was very detailed, including the reaction process of (R)-Oxiran-2-ylmethanol(cas: 57044-25-4Safety of (R)-Oxiran-2-ylmethanol)

(R)-Oxiran-2-ylmethanol(cas: 57044-25-4) is a chiral building block used to construct an epoxyvinyl iodide intermediate in a synthesis of a furanocembrane, a marine natural product.Safety of (R)-Oxiran-2-ylmethanol

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In 2018,RSC Advances included an article by Li, Yuting; Zhu, Yan; Tu, Guangliang; Zhang, Jingyu; Zhao, Yingsheng. Formula: C13H11ClO. The article was titled 《Silver-catalyzed direct benzylation of acetanilide: a highly efficient approach to unsymmetrical triarylmethanes》. The information in the text is summarized as follows:

A highly efficient silver-catalyzed dibenzylation of acetanilides by employing the benzhydrol derivatives as the coupling partners to yield triphenylmethane derivatives was developed. Various functional groups were tolerated, leading to the corresponding products in moderate to good yields. Preliminary exptl. results indicated that the silver ions activate the arene rings and the strong acid TfOH provides the carbocations. The experimental part of the paper was very detailed, including the reaction process of (3-Chlorophenyl)(phenyl)methanol(cas: 63012-03-3Formula: C13H11ClO)

(3-Chlorophenyl)(phenyl)methanol(cas: 63012-03-3) belongs to hydroxy-containing compounds. Hydroxy groups participate in the dehydration reactions that link simple biological molecules into long chains.Formula: C13H11ClO The joining of a fatty acid to glycerol to form a triacylglycerol removes the −OH from the carboxy end of the fatty acid.

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Alcohol – Wikipedia,
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The author of 《Chiral discrimination of secondary alcohols by both 1H-NMR and HPLC after labeling with a chiral derivatization reagent, 2-(2,3-anthracenedicarboximide)cyclohexane carboxylic acid》 were Ohtaki, Takashi; Akasaka, Kazuaki; Kabuto, Chizuko; Ohrui, Hiroshi. And the article was published in Chirality in 2005. Recommanded Product: 591-70-8 The author mentioned the following in the article:

Enantiomeric discrimination of chiral secondary alcs. was performed by both reversed-phase HPLC and 1H-NMR after labeling with a chiral fluorescent derivatization reagent, 2-(2,3-anthracenedicarboximide)cyclohexanecarboxylic acid. It was possible to discriminate by HPLC the chirality of alcs. up to C30 having a chiral hydroxyl group at the middle of the straight alkyl chain, and by 1H-NMR, alcs. up to C16. For alcs. having one straight alkyl and one isoalkyl group with the same carbon numbers at both sides of a hydroxyl group, it was possible to discriminate the chiralities of alcs. up to C19 by both 1H-NMR and HPLC. The 1H-NMR methods also made it possible to determine absolute configurations empirically. In the experimental materials used by the author, we found Octadecan-9-ol(cas: 591-70-8Recommanded Product: 591-70-8)

Octadecan-9-ol(cas: 591-70-8) belongs to hydroxy-containing compounds. Hydroxy groups participate in the dehydration reactions that link simple biological molecules into long chains.Recommanded Product: 591-70-8 The joining of a fatty acid to glycerol to form a triacylglycerol removes the −OH from the carboxy end of the fatty acid.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

The author of 《Inclusion of the phytoalexin trans-resveratrol in native cyclodextrins: a thermal, spectroscopic, and X-Ray structural study》 were Catenacci, Laura; Sorrenti, Milena; Bonferoni, Maria Cristina; Hunt, Lee; Caira, Mino R.. And the article was published in Molecules in 2020. Recommanded Product: 54-17-1 The author mentioned the following in the article:

The aim of the study was to determine the feasibility of complexation between the antioxidant trans-resveratrol (RSV) and underivatized cyclodextrins (CDs) using a variety of preparative methods, including phys. mixing, kneading, microwave irradiation, co-evaporation, and co-precipitation techniques. Products were characterized using differential scanning calorimetry (DSC), simultaneous thermogravimetric/DSC anal. (TGA/DSC), Fourier transform IR (FT-IR) spectroscopy, and powder X-ray diffraction (PXRD). With a-CD and RSV, sample amorphization was revealed by PXRD and FT-IR, but no definitive inclusion complexation was evident. Similar results were obtained in attempts to complex RSV with CD. However, complex formation between -CD and RSV was evident from observation of an endo-/exothermic effect appearing in the DSC trace of the product from kneading and was further corroborated by FT-IR and PXRD methods. The latter technique indicated complexation unequivocally as the diffraction peak profile for the product matched that for known isostructural CD complexes. Single crystal X-ray anal. followed, confirming the predicted complex between CD and RSV. A combination of 1H NMR and TGA data yielded the complex formula (CD)3·(RSV)4·(H2O)62. However, severe disorder of the RSV mols. prevented their modeling. In contrast, our previous studies of the inclusion of RSV in methylated CDs yielded crystals with only minor guest disorder. In addition to this study using rel-(3R,4S,5S,6R)-6-(Hydroxymethyl)tetrahydro-2H-pyran-2,3,4,5-tetraol, there are many other studies that have used rel-(3R,4S,5S,6R)-6-(Hydroxymethyl)tetrahydro-2H-pyran-2,3,4,5-tetraol(cas: 54-17-1Recommanded Product: 54-17-1) was used in this study.

rel-(3R,4S,5S,6R)-6-(Hydroxymethyl)tetrahydro-2H-pyran-2,3,4,5-tetraol(cas: 54-17-1) is the monohydrate form of the alpha isoform of D-glucopyranose, a synthetic simple monosaccharide that is used as an energy source.Recommanded Product: 54-17-1

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Alcohol – Wikipedia,
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